The key fob is your lifeline to your car, letting you unlock the doors and set off the alarm, at a minimum, but how can you tell if it needs a new battery?

We may receive a commission on purchases made from links. Have you ever gotten a key copied in a sketchy store hoping to save a few bucks, only to realize that it doesn't fit the lock that well?

With the door open, manually lock your Subaru, then simultaneously press and hold the Unlock and Trunk Release buttons until ...